Water heater



Nov. 8, 1932.

P F. GOETZ WATER HEATER Filed Dec. 24 1930 2 Sheets-Sheet Patented Nov. 8, 1932 PATENT OFFICE PAUL I. GOETZ, OIE LOGKPORT, ILLINOIS WATER HEATER Application filed December 24, 1930. Serial No. 504,567.

This invention relates to improvements in water heaters.

One of the objects of the present invention is the provision of a water heater wherein a direct heating method can be used or waste heat from the exhaust of Diesel motors, reverberating furnaces, gas engines and the like can be utilized for heating the water and the circulation of the waste heat is such that the maximum amount of heat can be obtained from this waste before being discharged from the heater.

Another object of the present invention is the provision of a water heater employing a lower water chamber with an upper steam chamber connected by vertical pipes with a combustion chamber arranged centrally of the device with a series of pipes therein communicating with the water chamber so that, upon supplying of heat to the combustion chamber, the water within the pipes within the central combustion chamber will be heat: ed and carried upwardly into the steam chamber where it will be conveyed back through suitable vertical pipes to the water chamber. A further object of the present invention is the provision of an improved type of water heater wherein either direct heat of waste heat can be utilized and includes improved means for creating a circulation of the waste heat in such a manner as to obtain the maximum efficiency of the same and wherein the water circulation is such as to obtain the maximum heat through its circulation and to provide a heater which can be used as a water heater for the heating of water or for heating a building or individual room.

' With the above and other objects in view, the invention consists in the novel features of construction, the combination and arrangement of parts hereinafter more fully set forth, pointed out in the claims and shown in the accompanying drawings, in which:

Figure 1 is a vertical sectional view, taken through my improved water heater;

Figure 2 is a side elevation, with parts broken away and illustrated in cross section;

Figure 3 is a transverse sectional View;

Figure 4 is a top plan View;

Figure 5 is a sideelevation, with parts in section illustrating a slightly modified form of the invention;

Figure 6 is a horizontal section of the form illustrated in Figure 5; and

Figure 7 is a diagrammatic view of the circulating members.

Referring more particularly to the draw-, ings, 1 indicates a cylindrical outer shell connected by means of the head plates 2 and 3. Beneath the head plate 3 is a water chamber 4 and above the head plate 2 is a steam chamber 5. Arranged centrally of the shell 1 is a housing 6, which forms a central combustion chamber and arranged around the inner wall of the housing 6 are the tubes 7 the ends of. which pass through the plates 2 and 3 and form direct communication between the water chamber 4 and the steam chamber 5.

Disposed between the plate 3 and the bottomof the water chamber 4 is a burner housing 10 havin arranged therein a burner 11, which is preferably adapted for liquid fuel. The upper end of the burner chamber 10 opens into the lower end of the combustion chamber A and the upper end of the combustion chamber A opens out through a tube 12 arranged between the plate 3 and the upper wall of the steam chamber 5. A restricted outlet opening 13 communicates with the tube 12 for discharging the gases of the 80 burned fuel.

Depending from the head 14 of the tube 12 is a superheater coil 15, which extends downwardly into the combustion chamber A, as shown in Figure 1.

When liquid fuel, such as coal oil and the like, is used in the burner 11, the heat therefrom has a tendency to heat the vertical pipes 7 within the housing 6, the heated Water rising upwardly to the chamber 5. A circular 9 conduit 16 is arranged within the steam chamber 5 and encircles the annular formation of the upper ends of the pipe 7, as shown in Fi re 1, thereby forming sump or receptac e-like part between the lower end of the tube 12 and the conduit 16 into which the hot water from the upper ends of the pipes 7 will be deposited, the steam from the ot water rising upwardly in the chamber 5 and, as the water continues its upward movement, it will flow over the top of the conduit 16 and be evenly distributed into the upper ends of the pipes 9, where it will travel downwardly and return tothe water chamber 4.

The tubes 9 within the housing 8 can also be heated to create a circulation of water by roviding an inlet 17 at the lower end of the ousin 8 and at one side thereof. Water from t is inlet leads into the housing 8 at a point 18 above the plate 3 and then is directed against an inclined partition 19, which carries it upwardly onto a circular late 20 which in turn continues around the ousing 6 and leads onto a second inclined ortion 19'. From the inclined portion 19, t e heat is guided upwardly and around the housing 6 again by an upper circular plate 20 which, in turn, leads onto a third inclined portion 19a. From the inclined portion 19a, the heat is guided upwardly and around the housing 6 again by a third circular plate 21 onto a fourth inclined portion 19b to the outlet 17 Waste gases such as exhaust gases from internal combustion engines or similar heated gases can be used for circuitous distribution between the housin 6 and the outside shell 8 wherelthe heat w1ll be brought into direct contact with the tubes 9 for heating the same. When the tubes 9 are heated, the water therein rises upwardly into the chamber 5 where it will flow over the conduit 6 and return to the water chamber 4 through the tubes 7. It will be apparent from the construction described and illustrated that either direct heating arrangement by means of the heater 11 can be used or waste heated gases can be used for circulation within the space between the shell 8 and the housing 6, thus providing a heater which can be used for a great many purposes.

In Figures 5, 6 and 7, I have illustrated a slightly modified form of the invention wherein the outer shell 8 is spaced from the inner shell 6 to form a circulation chamber between these two shells and within this chamber I provide the tubes 9' while within the hous ing 6' are the tubes 7 which connect the steam chamber 5' and water chamber 4'.

Arranged in spaced relation within the chamber between the tubular housing 6 and 8 are the vertically extending panels 22 and 23, which are arranged in equal spaced relation, as shown in Figure 6. In the arrangement of these panels 22 and 23, it will be noted that panels 23 extend from the bottom plate 3' upwardly to a point spaced from the top plate 2' while anels 22 extend downwardly from the top p ate 2 to a point spaced from inner housing 6 and the outer shell 8' will thoroughly heat the water in the tubes in this chamber.

It will be apparent from the foregoing that a great many ways can be employed for creating a circulation of heated gases around the water tubes between the lower water chamber and the upper steam chamber, the main feature of the invention being the provision of a Water heater wherein liquid fuel can be used as a direct heating element or waste gases or heat fumes can be used equally as well, thus reducing to a minimum the expense incurred for operating a heater of this character, which is comparatively simple and it is believed the same can be manufactured and installed at a very low cost.

I claim:

1. A heater of the class described including, an annular water chamber and an annular steam chamber spaced therefrom, a shell having a hot gas inlet and outlet positioned between said chambers, a housing within the shell between the chambers, tubes extending from the water chamber to the steam chamber between the shell and housing, a second set of tubes within the housing and extending between the water chamber and steam chamber,

and burner means to provide for heating of the second setof tubes when the flow of hot gas to said first set is interrupted.

2. A heater of the class described including, an annular water chamber and an annular steam chamber spaced therefrom, a shell having a hot gas inlet and outlet positioned between said chambers, means arranged between the chambers to provide passageways, a housing withinthe shell between the cham bers, tubes extending from the water to the steam chamber between the shell and housing, a second set of tubes within the housing and extending between the water chamber and steam chamber, and burner means to provide for the heating of the second set of tubes when the flow of hot gas to said first set is interrupted.

3. A heater of the class described including, an annular water chamber and an annular steam chamber spaced therefrom, a shell having a hot gas inlet and outlet positioned between said chambers, means within the shell forming a circuitous guide between the inlet and outlet, a housing within the shell between the chambers, tubes extending from the water chamber to the steam chamber between the shell and housing, a second set of tubes within the housing and extending between the water chamber and steam chamber, and burner means to provide for the heating of the second set of tubes when the flow of hot gas to said first set is interrupted.

In witness whereof, I have hereunto set my hand this 1st day of November, A. D. 1930.

PAUL F. GOETZ. 

